SPECIFICATIONS  • 1/4-inch guitar input (normal or pad)  • Two balanced XLR inputs with mic preamps  • Gain knobs  • Phantom power  • 1/4-inch stereo monitor input  • Two 1/4-inch line inputs  • Two balanced 1/4-inch line out  • S/PDIF digital out  • 1/4-inch stereo headphone out with level control  • Assignable VU meters      ADDITIONAL FEATURES  • USB bus-powered with LED status indicator  • Rock Solid ASIO, WDM and Mac® OS X Drivers      SYSTEM REQUIREMENTS  • 512MB RAM minimum (1GB or more recommended)  • 1GB free HD space minimum (10GB or more recommended for recording)  • Drive speed 5400rpm minimum (7200rpm or faster recommended)  • CD-ROM drive  • Internet connection for activation and online features  • One free USB 1.1- or 2.0-compatible port on computer (USB hubs are not supported)      Mac:  • G4 800MHz or better  • OS X 10.4.6 or better  • Mac® AU/RTAS®/VST®      Windows:  • Pentium® IV 1.2GHZ or better  • Windows® XP (SP2) or better  • RTAS/VST